Longyuan Natural Polyphenol   Synthesis Factory  is the leading enterprise in the Chinese gall tannin industry. Its pharmaceutical intermediates holds significant position in international market. Production technology and product quality of the electronic chemicals is advanced in the world. Passed the ISO9001 International standard quality system certification in2001. * Passed  the Jewish card (KOSHER) certification in 2006. * Obtained the National industrial   production permit in 2007. * Obtained the Food hygiene license in 2007. * Passed the European feed additives and premix manufacturers practices( FAMI-QS) certification in 2009 * Passed the food management system certification in 2009.   certification) They provide a solid guarantee for the implementation of the strategy to expand the business overseas.